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Alternatives / AI Tools

Viaduct alternatives

5 comparable AI tools to Viaduct— each with what actually sets it apart, reviewed on Stork.

The best alternatives to Viaduct are Structurizr, PlantUML (with C4-PlantUML), Mermaid, C4 InterFlow and Diagrams.net. Each is an AI tool with a distinct edge — pricing, output quality, or workflow — detailed below and reviewed on Stork.

  • It is the reference implementation of the C4 model, created by Simon Brown, and focuses on 'architecture as code' using a DSL to generate diagrams from a single model.

  • It allows users to define diagrams using a simple text-based language, with an open-source extension specifically for C4 models.

  • A JavaScript-based diagramming tool that renders diagrams from text-based definitions, with built-in support for C4 diagrams and easy integration into web platforms like GitHub.

  • An open-source Architecture as Code framework that allows expressing, analyzing, and generating C4 diagrams and documentation from YAML/JSON models via a CLI.

  • A versatile, free, and open-source online diagramming tool with specific C4 model shape libraries and collaborative features.

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